[BlobStorage] BlobMemoryController & tests

storage/common/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 component("common") {
   output_name = "storage_common"
   sources = [
     "blob_storage/blob_item_bytes_request.cc",
     "blob_storage/blob_item_bytes_request.h",
     "blob_storage/blob_item_bytes_response.cc",
     "blob_storage/blob_item_bytes_response.h",
+    "blob_storage/blob_storage_constants.cc",
     "blob_storage/blob_storage_constants.h",
     "data_element.cc",
     "data_element.h",
     "database/database_connections.cc",
     "database/database_connections.h",
     "database/database_identifier.cc",
     "database/database_identifier.h",
     "fileapi/directory_entry.cc",
     "fileapi/directory_entry.h",
     "fileapi/file_system_info.cc",
@@ skipping 17 matching lines @@
   defines = [ "STORAGE_COMMON_IMPLEMENTATION" ]
 
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
     "//net",
     "//third_party/WebKit/public:blink_headers",
     "//url",
   ]
 }